''The Blue Lagoon'' is a 1908 novel by Henry De Vere Stacpoole, which follows a pair of teenagers as they attempt to survive on an idyllic tropical island.

In the Victorian era, a ship goes off course and sinks, with three people -- a galley cook named Paddy Button, and cousins Richard and Emmeline Lestrange -- fleeing to a rowboat and sailing towards an island in the distance. Once they arrive, they begin to make the island their permanent home, and Paddy teaches them basic survival skills. However, Paddy wanders off and dies in a drunken haze, leaving the two to fend for themselves.

Several years pass, and the now-mature teenagers begin to explore the island, discovering relics and hidden secrets in the process. Their hot-cold friendship also turns into a full-blown romance and eventually results in Emmeline giving birth to a child and the newly-formed family inadvertently leaving the island.

Two sequels were made following the success of the original book. ''The Garden of God'', published in 1923, follows Richard and Emmeline's son, Dick Lestrange (called "Dick M." because he says "Dick" and "Em" while playing with the sailors who rescued him). He ends up with his grandfather (Richard's father) on the same island, and as a young adult meets a marooned woman named Katafa, from the nearby island of Karolin, with whom he eventually begins a romance. ''The Gates of Morning'', published in 1925, has Dick become the king of the native Kanaka tribe on Karolin, and grapples with newfound responsibility and the threat of a rival tribe. [[http://web.archive.org/web/20080101033038/http://www.pacificislandsinfo.com/ All three original novels can be online here under "E-texts"]].

There have been four film adaptations. A 1923 silent film directed by W. Bowden and Dick Cruickshanks. A 1949 version directed by Frank Launder. The 1980 adaption directed by Randal Kleiser and starring Brooke Shields and Christopher Atkins. In 1991, William A. Graham produced and directed a loose adaption of ''The Garden of God'' titled ''Return to the Blue Lagoon'' starring Creator/MillaJovovich and Brian Krause. And in 2012, Creator/{{Lifetime}} had a loose adaptation called ''Blue Lagoon: The Awakening'' starring ''Series/HomeAndAway'' actors [[Series/H2OJustAddWater Indiana Evans]] and Creator/BrentonThwaites, with Christopher Atkins making a cameo as their teacher.

Serious scholars of Creator/EdgarRiceBurroughs' work believe they can track part of his inspiration for ''Literature/{{Tarzan}}'' to these novels and to Morgan Robertson's earlier novella, ''Primordial''.

!!The novels and the films provide examples of:

* AsLongAsItSoundsForeign: The commentary track on the DVD for the 1980 movie mentions that Randal Kleiser and his crew never could get a straight answer out of the native islanders they had doing the HumanSacrifice scene as to whether the ceremony they put on in that scene was based on any actual historical religious rituals of theirs. He and his fellow commentators on the track also admit they have no idea what the natives were chanting at that ritual; it could be an actual religious ritual chant, they could be [[StealthInsult making fun of the cast and crew]], or they could just be reciting total gibberish. The commentators go on to invite anyone who happens to know those islanders' language to get in touch with the studio.
* BeautyIsNeverTarnished: Even though they're stuck on a deserted island for years, the leads never really look like they're any worse for wear, besides a couple tears in their clothes and deep tans. The 2012 movie is especially bad about this.
* CaughtWithYourPantsDown: In the 1980 film, Emmeline catches Richard [[ADateWithRosiePalms stimulating himself manually]]. She asks what he's doing, and he guiltily says "Nothing!" In another scene when they're arguing, she taunts him extensively about this.
* ChildhoodFriendRomance: Exaggerated, since from early childhood they are literally the only partners of the opposite sex for each other.
* ChildrenAreInnocent
* ComingOfAgeStory
* ConvenientComa: In the novel, Emmeline comes walking out of the forest with the baby she had a few hours earlier. She explains to Richard that she felt ill, went to sit in the forest, and then "remembered nothing more" until she woke to find the baby lying beside her. Apparently she remembers more about the birth later.
* DesertedIsland: Take a wild guess...
* DiabolusExMachina: In a movie based primarily around emotional and physical self-discovery, Diabolus is personified in the form of a three-year-old boy throwing oars from boats.
* DidTheResearch: Stacpoole, a ship's surgeon, lived among the South Sea Islands for years. Everything he wrote about Palm Tree (Richard and Em's island) and Karolin and its indigenous Kanaka people was legit and realistic.
* DullSurprise: The acting from the leads in these films was somewhat wooden. Brooke Shields was the first actress to win a Razzie and Milla Jovovich and Brian Krause were both nominated for Worst New Star.
** Shields' acting was faithful to the book, though -- Em's dreamy, almost mystic abstraction is one of her primary characteristics.
* EightiesHair: Despite being stranded on an island since childhood, Richard somehow manages to have a consistent perm. (Ironically, this was deliberate: the film crew actually thought a perm made him look more "savage" for some reason.)
* TheFilmOfTheBook: As mentioned, four of them, of varying faithfulness.
* GladToBeAliveSex: Presumably the reason for the first sex scene in ''The Awakening''. The two leads discover a skeleton near their lean-to, and Emma freaks out. Not long after, she has sex for the first time with Dean.
** They also have this in the 1980 film as Em is recovering from stonefish poisoning that almost killed her. In the book, what they experience is closer to SlapSlapKiss.
* GodivaHair: Emmeline. To the point (as pointed out by Creator/RogerEbert) of {{Narm}}. The makeup artists had to glue Shields' hair to her chest to prevent any inadvertent nip slips.
* HappyEndingOverride: Both the sequel film and book have it so that the otherwise-happy ending of the original work (Richard, Emmeline and Hannah (Dick M) are found sleeping in the boat) is overridden by the reveal that the berries really were poisonous and the adults died. This is especially egregious in ''Return to the Blue Lagoon'', in which the characters' positions on the boat have changed (they're now lying face-down instead of huddled together) and the scene is reshot to have different dialogue.
** This was Stacpoole's doing. The first words in the sequel (''The Garden of God'') are "No, they are dead," and we are told they have just stopped breathing at that moment. Seems Stacpoole didn't want to write ''any'' sequels; he ended up writing two. First he killed off Richard and Em; in the third book, he went into full RocksFallEveryoneDies mode. He killed off ''the island itself'' by having it completely swallowed up in a huge typhoon. He did an EverybodysDeadDave in the last book by visiting almost the entire population of Kanaka people on Karolin (and Dick, but not Katafa) with a measles epidemic. In the last chapter, Katafa's niece Le Moan offers her life to the gods to spare Dick's life and he begins to recover. Sheesh!
* KissingCousins: Richard and Emmeline are cousins. They are also the only available mates for each other.
* {{Loincloth}}
* MaleGaze: In most adaptations, although most notably in ''The Awakening''. Not that anybody would mind watching Indiana Evans cutting her jeans into a pair of shorts and subsequently putting them on though.
* MightyWhitey: Dick (Dick M.) Lestrange, son of the [[KissingCousins original couple]]. He appears in ''Garden of God'' and the followup novel ''The Gates of Morning''. He can best be described as an intelligent, likable and very easygoing SurferDude. Katafa, something between a JunglePrincess and a BrokenBird, washes up on the shore and causes trouble. She [[ButNotTooForeign isn't really a Kanaka, but a Spanish girl]] who was RaisedByNatives. To ensure the plotline, she's been cursed as an untouchable. After sundry how-likely-is-''that'' events, during which he picks up and keeps a Royal MacGuffin, Dick and Katafa [[WhatIsThisThingYouCallLove fall in love]]. Katafa [[DefrostingIceQueen becomes touchably soft]] while Dick becomes both active and passionately caring; she's kind of his Muse. She takes him home with her, where (partly due to his having the royal war club) he is ''immediately'' [[AwesomeMomentofCrowning hailed as King]]; the old King having died in Katafa's absence and Katafa having been thought dead, her return is a miracle. Stacpoole (usually fairly non-racist) clearly implies that in their present predicament, the natives need a white couple to save them -- or, at least, that Dick couldn't marry an indigenous woman, so ''he'' needed a Caucasian girl.
* NakedPeopleAreFunny: Done in a somewhat comic scene in which the two kids go running naked ahead of Paddy, who's yelling at them to get their clothes back on.
* NobleSavage: Richard and Emmeline in the original film, and Richard (son of the couple from the first movie) and Lilli of the sequel. They pretty much raise themselves to adulthood and know little of human civilization. They are described explicitly as "far gone in savagery", to the point that they don't talk much anymore (they don't have to). On the other hand, the original inhabitants of the island are seen practicing human sacrifice; nothing particularly noble about them.
* NostalgicMusicbox: Among the artifacts taken to the island is a music box that plays Chopin's Nocturne Op. 9, #2 in E flat major. Emmeline says "That's Chopin! I can play it on the piano." It's used by the kids growing up as a connection with/nostalgic reminder of their life before the island. Sometimes they dance to it. None of this is in the book.
* PoliceAreUseless: In the 2012 Lifetime adaptation set in the modern time, where locating a pair of teenagers stranded on an island that's unlikely to be located further than 35 miles away from the spot the Coast Guard intercepted the party boat (judging by the fact they were floating throughout an entire night on an apparently calm sea) proves a tremendous task.
* RagingStiffie: In the first film, there are many shots of Christopher Atkins swimming naked underwater with an erect penis. How the filmmakers got away with an R rating for that is quite a mystery. In ''Return to the Blue Lagoon'', Richard wakes up with an erection, which is sort of what tends to happen to a guy when he's close to Milla Jovovich.
* {{Robinsonade}}: The first two books are definitely this. When you are done reading them you will know how to cook a breadfruit, the uses of liana vine, what to expect in a hurricane, and to clean your campsite thoroughly after meals so you don't get crabs.
* SceneryPorn: It even got an Academy Award nomination for its cinematography.
* ScreamingBirth: Emmeline doesn't even ''know'' she's giving birth, only that she feels sick and is in pain and her body's pushing against ''something''. She instinctively takes a hands-and-knees posture. The only acknowledgement of it being a birth is Richard asking why she had a baby. (She'd left while he was distracted fishing, then he frantically looks for her -- in the book, he never finds her and she just comes back with the child. In the film, he does and is with her during the delivery).
* StrongFamilyResemblance: In ''The Awakening'', Denise Richards really ''does'' look like a twenty years older version of her in-movie daughter Indiana Evans.
* SurprisePregnancy: Justified, in that neither Richard or Emmeline have had enough of a sex education to recognize the signs of a pregnancy. They don't know what ''sex'' is, or that it causes this.
* WalkingShirtlessScene